Old Felwood's notes are scattered and trivial, and Kaichi must sort them out. For some irrelevant things, discard them all, and then organize and classify all the useful forging steps.

Because he was in a bit of a hurry, Jiayi didn't finish sorting it out until late at night and copied it down. After finishing and copying, Jia Yi didn't have any experience, after all, the time was too short, and he was not born in iron. I could only transcribe a copy of what I had put together, and give it to old Faywood for them.

The next day, Jia was a little late, and stayed up too long last night. Because he doesn't have any evening activities, he has always maintained a good habit of going to bed early and waking up early.

By the time he finished tidying up, it was almost noon. Ordinary civilians here only have two meals, but those who have the conditions have already begun to eat three meals. Some aristocrats also have five meals of afternoon tea and supper, but Jiayi is still used to eating three meals, and sometimes he also eats supper.

After lunch, he took the dwarven forging process he had put in order and went to the Felwood weapons shop.

"Old Felwood, this is the note you gave me, and this is what I sorted out, which is much more convenient than the original, and I will give you a copy too. The time is too short for me to fully analyze what is in it, and I will write to you when I make new discoveries later.

"We're going to take a look at your furnace today and help you renovate it, so that your furnace can get a higher temperature and make it easier to strike iron. ”

Old Feywood looked much better today, and it seemed that he had seen a lot about the secret method of selling his family. He took Jia Yi to the iron furnace in the back hall.

Say: "This is the stove we usually use, you see where it needs to be improved." ”

Kaichi is now a flame master, and his understanding of fire and temperature is more profound than before. In particular, Jiayi pays attention to the basics, and he doesn't just know much about the nature of fire magic, not only for the sake of power, but for the nature of flames.

In order to maintain high temperatures, one is to increase the energy that can be produced by the combustion of the fuel, and the other is to increase the amount of oxygen intake so that the fuel can be fully combusted, and finally, to reduce the loss of heat.

The first few methods can be done by physical methods, such as better fuel, adding bellows. These are actually already available in the original stove. But the original furnace was not well designed, the role of the bellows was not maximized, and the combustion of fuel was not sufficient.

Jiayi first redesigned the furnace, optimized the furnace's bellows to make the air intake larger and more labor-saving, and then modified the furnace's combustion chamber to add a dome lid on top to reduce heat loss.

When all this is done, the performance of the furnace has improved a lot, but it is not enough.

Kaichi did not improve the fuel used for striking iron, although he knew that it was better to use coke instead of charcoal, which was made from coal distillation. Fuel improvements are easier to spread, so Jia Yi is ready to hand it over to his own Chamber of Commerce when the time is right.

In fact, it seems that Jiayi is still stingy sometimes.

Kaichi didn't improve the fuel, but he still had magic.

Jia Yi used to be a programmer, and although he later wanted to program magic, after all, he still couldn't recreate a language, so Jia Yi didn't make much progress after a stage. But even so, Kaichi has a unique understanding of magic and magic arrays.

Especially in terms of the optimization of the magic array and the re-transformation design, he has almost surpassed his teacher.

For this newly designed furnace, Kaichi did not use a magic circle that raised the temperature. This type of circle requires magic gems to provide energy, or to use energy storage crystals. But old Felwood didn't know how to do magic, and using magic gems for energy was a bit too extravagant. The things that are typed like that are not cost-effective, plus his brand is not outstanding, and there is no emotional bonus, and the products that are typed out will not sell well.

So Kaichi redesigned a magic array for this stove.

The function of this array is mainly reflected in the heat preservation, which can prevent the heat in the furnace from dissipating and lock the heat in the combustion chamber, so as to increase the temperature inside the furnace in disguise.

Another advantage of this magic array is that it has low consumption, and it can be powered for more than two years by using a standard magic stone. Jia Yi added a half-finished thermal energy circle to the magic array, which can absorb the escaping heat to power himself and reduce the consumption of mana.

The reason why the magic stone is still needed to function is mainly because this magic circle is not perfect and must be catalyzed by magic power, and the magic stone also takes into account the function of activating the magic circle.

Because the stove was changed too much, Kaichi could only push the original stove to be redone. As a mage, he was quick to build a new stove, using magic aids, and by night the new stove was ready to use.

Old Feywood raised the furnace and melted the molten iron in the furnace, saving at least one-third of the time compared to the original, and was able to melt the metal with a higher melting point, making a harder alloy.

However, the main thing used in weapons is steel, and Kaichi looked at the molten iron flowing in the crucible in the furnace and said, "You take some iron ore powder and sprinkle it in it, and then mix it with something, so that you can get higher quality steel." ”

Jia Yi is talking about the legendary steel frying method, or he saw it in historical texts, and later he deliberately Baidu it. If you want to produce steel in large quantities, it is better to use a blast furnace, even if it is a native blast furnace. But the so-called earth-based blast furnace is not a simple thing, and it can be made casually. The method of frying steel is simple to implement, and the conditions required are relatively few.

At this time, if the iron wants to get steel, it needs to be slowly forged, and the impurities in the iron need to be hammered out step by step to make it become steel. The frying method makes the steel more simple, and the stirring and iron ore will cause the carbon and oxygen in the molten iron to react, so that the carbon content is reduced, and the steel is directly obtained.

Next, Jiayi also handed him the carburizing method, the steel will be decarburized after a long time of forging, resulting in a decrease in hardness and a higher toughness, carburizing is to heat up the made weapon and insert it into the toner powder to keep warm, so that the carbon penetrates into the surface of the fog, yes, the external strength of the weapon becomes higher, and the inside still maintains toughness.

After teaching these things, the sky was already dark, and Jia Yi said: "Okay, my two techniques are not less valuable than your dwarf forging method, and they are much more friendly than your dwarf forging method, and anyone can use them, and the application range is also wide, so I should only teach you one." Some losses. ”

At the end, Jia Yi was a little embarrassed, thinking that he was not too generous. The main thing is that he uses magic to make things himself, and the temperature that the magic flame can reach is high, so he can't look down on these two techniques, to be precise, he can't look down on the steel frying method.

Old Ferwood blushed and said, "I know that the master is very generous, and a little leakage between his fingers can kill us, and you must not look down on these little tricks." I'll use this new stove to get you another woodcutter, a skinning knife, and a few more. ”

"Forget it, what do I want so many knives for? You have to keep these two techniques well, and don't teach others to learn them. ”

"How is it possible, this will be our heirloom from now on, and it must be well preserved. ”

Old Feywood is now happy in his heart, these two methods are nothing for Jiayi, but for old Feywood, they can be used as the foundation of his life. With these two methods, it is completely possible to change the position of your own weapons shop without embarrassment. So now he completely forgot how he was reluctant and how he struggled later, and only felt that selling the dwarven forging process that he couldn't use was the most correct decision he had made in his life.

"Okay, it's getting late, I'll go back first. Kaichi said.

"If you don't have dinner and leave, I invite you to a dinner party as a thank you. ”

"Forget it, I'm sweating all over today, I'm going to go back and wash first. "People here don't like to take a bath, and they can't do it once a month. But Kaichi can't stand it, even when it's cold, he has to wash it every 3 days or so, and if he sweats, he has to wash it.

Unlike people here, sweating is like taking a bath.

Under his influence, his family also washed much more diligently.